US PATENT SUBCLASS 172 / 626
.~.~.~ Sectional draft bar

Current as of: June, 1999
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172 /   HD   EARTH WORKING

613  DF  PLURAL RELATIVELY MOVABLE TOOLS {14}
619  DF  .~ Plural tool groups relatively vertically movable because of operation {9}
624  DF  .~.~ Plural groups movably connected to forward transverse draft bar {4}
626.~.~.~ Sectional draft bar

DEFINITION

Classification: 172/626

(under subclass 624) Apparatus in which the bar or draft beam is composed of two or more movably connected sections.